package com.atguigu.gulimall.product.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author 满超
 * @date 2020/06/07
 **/
@EnableConfigurationProperties(CacheProperties.class)//自定义配置类自己生效
@Configuration
@EnableCaching
public class MyCacheConfig {

    @Autowired
    CacheProperties cacheProperties;

    @Bean
    RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {

        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        //自定义缓存存储类型，存储在redis中的格式
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));//key字符串类型
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));//value json类型

        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        //将配置文件中所有的文件都生效
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }

        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixCacheNameWith(redisProperties.getKeyPrefix());
        }

        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }

        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }

        return config;
    }
}
